Evidence map›Paper›PMID 42189049›Full record

ArticleJournal of virology2026

Norovirus-specific monoclonal antibodies that block histo-blood group antigen binding isolated from healthy donors.

Sabina E W Leonard, Olivia C Powers, Parastoo Amlashi, Mark von Itzstein, Perry T Wasdin, Toma M Marinov, Alexandra A Abu-Shmais, Ivelin S Georgiev, Grant S Hansman

Abstract read
In one paragraph

Article in Journal of virology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Sabina E W LeonardVanderbilt Center for Antibody Therapeutics, Vanderbilt University Medical Center, Nashville, Tennessee, USA.ORCID 0009-0007-7756-2756
Olivia C PowersVanderbilt Center for Antibody Therapeutics, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Parastoo AmlashiVanderbilt Center for Antibody Therapeutics, Vanderbilt University Medical Center, Nashville, Tennessee, USA.ORCID 0000-0002-4801-1871
Mark von ItzsteinInstitute for Biomedicine and Glycomics, Griffith University, Gold Coast, Queensland, Australia.ORCID 0000-0001-6302-7524
Perry T WasdinVanderbilt Center for Antibody Therapeutics, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Toma M MarinovVanderbilt Center for Antibody Therapeutics, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Alexandra A Abu-ShmaisVaccine Research Center, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, USA.ORCID 0000-0001-5514-3277
Ivelin S GeorgievVanderbilt Center for Antibody Therapeutics, Vanderbilt University Medical Center, Nashville, Tennessee, USA.ORCID 0000-0002-6312-7696
Grant S HansmanInstitute for Biomedicine and Glycomics, Griffith University, Gold Coast, Queensland, Australia.ORCID 0000-0001-8735-4618

Funding

Technologies for High-Throughput Mapping of Antigen Specificity to B-Cell-Receptor SequenceR01AI175245 · NIAID · VANDERBILT UNIVERSITY MEDICAL CENTER · PI Ivelin Georgiev · 2023 to 2026
$3.4M
NIAID NIH HHS R01 AI175245
6 · The paper itself

Abstract

Human noroviruses are a leading cause of acute gastroenteritis, yet no licensed vaccine or antiviral is currently available. The extensive genetic diversity of noroviruses and the limited cross-protective immunity between genotypes complicate the development of broadly effective interventions. To systematically characterize norovirus-specific B cell responses from healthy individuals, we applied linking B cell receptor to antigen specificity through sequencing (LIBRA-seq) to peripheral blood mononuclear cells using a genetically diverse panel of norovirus capsid protruding (P) domain antigens. Antigen-specific B cells were identified at single-cell resolution and selected for recombinant monoclonal antibody (mAb) expression. A total of 25 norovirus-specific mAbs were generated and evaluated for binding breadth across multiple genogroup II (GII) genotypes. Binding analyses revealed substantial heterogeneity, with some mAbs displaying narrow, genotype-restricted recognition, whereas others exhibited broad cross-reactivity. Epitope competition assays using a subset of mAbs demonstrated both overlapping and distinct binding sites on the P domain. Functional activity, assessed using a surrogate neutralization assay measuring inhibition of histo-blood group antigen (HBGA) binding, showed that several broadly reactive antibodies inhibited virus-like particle attachment to HBGAs with variable potency across genotypes, whereas others exhibited genotype-restricted inhibition. Together, these results demonstrate that LIBRA-seq enables efficient mapping of human antibody repertoires to norovirus at the population level and reveals that natural exposure generates a diverse B-cell repertoire with varying specificity and functional breadth.IMPORTANCEHuman noroviruses are the leading cause of acute viral gastroenteritis worldwide, yet individuals experience repeated infections throughout life, indicating that protective immunity is incomplete and remains poorly understood. In this study, we applied the high-throughput LIBRA-seq approach to systematically map the norovirus-specific antibody repertoire in healthy human donors, enabling the identification of monoclonal antibodies that recognize and functionally inhibit clinically relevant genotypes. This work provides new insight into the breadth and specificity of naturally acquired humoral immunity by establishing a comprehensive framework for analyzing antigen-specific B cell responses in the general population and generates a well-defined panel of human antibodies that will be useful for future studies of norovirus immunity, vaccine evaluation, and therapeutic development.

Indexed as

Antibodies, MonoclonalAntibodies, ViralBlood Group AntigensNorovirusAntigens, ViralB-LymphocytesCaliciviridae InfectionsCapsid ProteinsCross ReactionsGastroenteritisGenotypeHealthy VolunteersHumansLeukocytes, MononuclearProtein BindingAntibodies, MonoclonalAntibodies, ViralAntigens, ViralBlood Group AntigensCapsid Proteinsantibodyhisto-blood group antigennorovirus

Identifiers

PMID42189049
PMCPMC13288926

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.